ITEM NAME:Metal Sleeve Drill Chuck Drilling Quick Change Bit Adapter Converter SDS N ZHR Descriptio n Size: 56*43.6mm, rod 12.4*75mm Colour: Black Material: chrome vanadium steel Product list: 2PCS (chuck*1, rod*1) Features: Two pits and two slots of electric hammer handle We offer you what you need! Metal Sleeve Drill Chuck Drilling Quick Change Bit Adapter Converter SDS Adaptor.We'd like to settle any problem in a friendly manner. 2PCS (chuck 1, rod 1). Colour: Black. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. Size: 56 43.6mm, rod 12.4 75mm.